Home / 140,265,674.40-193,566,070.56-78,385,996.80

Finding the Fourth Proportional to 140,265,674.40, 193,566,070.56 and 78,385,996.80

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Solution

The fourth proportional to 140,265,674.40, 193,566,070.56 and 78,385,996.80 is: 108,172,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,265,674.40 : 193,566,070.56 = 78,385,996.80 : x
  2. Step 2: Convert to fraction form
    140,265,674.40/193,566,070.56 = 78,385,996.80/x
  3. Step 3: Cross multiply
    140,265,674.40x = 193,566,070.56 × 78,385,996.80
  4. Step 4: Simplify right side
    140,265,674.40x = 15,172,869,387,504,734
  5. Step 5: Solve for x
    x = 15,172,869,387,504,734/140,265,674.40
  6. Step 6: Final answer
    x = 108,172,362.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.